Special bulb milling cutter for milling titanium alloy thin-wall parts

Abstract

The invention discloses a special bulb milling cutter for milling titanium alloy thin-wall parts. The bulb milling cutter comprises a tool bit consisting of a first cutting edge and a second cutting edge, and a back cutter surface connected with the cutting edges; the back cutter surface is a surface provided with a 60-degree cross texture structure; the problem of difficult machining of a titanium alloy material is the difficulty in the traditional manufacturing industry, and the problems of high cutting temperature, high cutting force, bad cutter wear, low machining precision, low machiningsurface quality and the like in the cutting process are generated; and the special bulb milling cutter for milling the titanium alloy thin-wall parts achieves excellent cutting performances of wear reduction, wear resistance, reduction of the cutting temperature, reduction of the cutting force, improvement of the machining surface quality and prolonging of the cutter service life through innovative design.

Description

technical field [0001] The invention relates to a cutting tool in the field of mechanical processing, in particular to a special ball end milling cutter for milling titanium alloy thin-walled parts. Background technique [0002] Titanium alloy has good corrosion resistance, toughness, and heat resistance, and is widely used in the aviation manufacturing industry. Because of its unique characteristics, such as: small thermal conductivity, small specific heat and active chemical properties, titanium alloy materials The processing of titanium alloy thin-walled parts is still a difficult point in the current manufacturing industry. During the cutting process of titanium alloy thin-walled parts, there are problems such as high cutting temperature, large cutting force, serious tool wear, machining accuracy and surface quality that do not meet the requirements. The surface is a continuous plane, and the friction between the flank and the workpiece surface after processing is large....

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Problems solved by technology

[0002] Titanium alloy has good corrosion resistance, toughness, and heat resistance, and is widely used in the aviation manufacturing industry. Because of its unique characteristics, such as: small thermal conductivity, small specific heat and active chemical properties, titanium alloy materials The processing of titanium alloy thin-walled parts is still a difficult point in the current manufacturing industry. During the cutting process of titanium alloy thin-walled parts, there are problems such as high cutting temperature, large cutting force, serious tool wear, machining accuracy and surface quality that do not meet the requirements. The surface is a continuous plane, and the friction between the flank and the workpiece surface after processing is large. A large amount of cutting heat is generated at the cutting edge and the contact area between the flank and the workpiece, and it is difficult to spread. The heat gradually accumulates to generate high temperature, and the heat dissipation is poor. Poor, under the action of high temperature and high pressure for a long time, it will cause severe wear of the cutting edge and flank, which directly affects the surface quality of the workpiece and the service life of the tool. The geometric parameters of the tool have extremely sensitive special requirements for the workpiece material. Application The ball end milling cutter not only has common materials, but also has common geometric parameters. It is difficult to balance the cutting performance. It is imminent to optimize the geometric parameters of the tool according to the material characteristics of the workpiece to meet the actual processing needs.

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